Osteospermum plant named ‘Balserpurp’

ABSTRACT

A new and distinct cultivar of  Osteospermum  plant named ‘Balserpurp’ characterized by its single inflorescence form with dark purple-colored ray florets, violet-blue-colored disc florets, dark green-colored foliage, freely branching character, and compact, upright, and mounded growth habit.

Latin name of the genus and species of plant claimed: Osteospermum ecklonis.

Variety denomination: ‘Balserpurp’.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Osteospermum plant botanically known as Osteospermum ecklonis and hereinafter referred to by the cultivar name ‘Balserpurp’.

The new Osteospermum originated in a controlled breeding program in Arroyo Grande, Calif., during July 2002. The objective of the breeding program was the development of Osteospermum cultivars that are freely branching, have a compact and upright growth habit, are freely flowering, and have unique inflorescence coloration.

The new cultivar originated from the open-pollination of ‘Springstar Aurora’, not patented, characterized by its dark purple-colored ray florets and medium green-colored foliage. Seed from the above stated open-pollination was germinated and grown to maturity. A single flowering plant within the progeny was discovered and selected by the inventor during December 2002 in a controlled environment at Arroyo Grande, Calif.

Asexual reproduction of the new cultivar by terminal stem cuttings taken since December 2002 at West Chicago, Ill. has demonstrated that the new cultivar reproduces true to type, with all the characteristics as herein described, firmly fixed and retained through successive generations of such asexual propagation.

SUMMARY OF THE INVENTION

The following characteristics of the new cultivar have been repeatedly observed and can be used to distinguish ‘Balserpurp’ as a new and distinct cultivar of Osteospermum plant:

-   -   1. Single inflorescence form with dark purple-colored ray         florets and violet-blue-colored disc florets.     -   2. Dark green-colored foliage.     -   3. Freely branching character.     -   4. Compact, upright, and mounded growth habit.

Plants of the new cultivar differ from plants of the female parent primarily in foliage color.

Plants of the new cultivar are most similar to the cultivar Sunny Ingrid, U.S. Plant Pat. No. 10,996. However, in side-by-side comparisons, plants of the new cultivar differed from plants of ‘Sunny Ingrid’ in the following characteristics:

-   -   1. Plants of the new cultivar are taller and less spreading than         plants of ‘Sunny Ingrid’.     -   2. Plants of the new cultivar have larger inflorescences than         plants of ‘Sunny Ingrid’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs show, as nearly true as it is reasonably possible to make the same in color illustrations of this type, typical inflorescence and foliage characteristics of the new cultivar. Colors in the photographs differ slightly from the color values cited in the detailed description, which accurately describe the colors of ‘Balserpurp’. The plants were grown in a 5 gallon pot for 16 weeks in the field at West Chicago, Ill.

FIG. 1 illustrates a view from above of the overall growth and flowering habit of ‘Balserpurp’ with three plants per pot.

FIG. 2 illustrates a close-up view of an individual flower of ‘Balserpurp’.

DETAILED BOTANICAL DESCRIPTION

The new cultivar has not been observered under all possible environmental conditions to date. Accordingly, it is possible that the phenotype may vary somewhat with variations in the environment, such as temperature, light intensity, and day length without, however, any variance in genotype.

The chart used in the identification of colors described herein is the R.H.S. Colour Chart of The Royal Horticultural Society, London, England, 2001 edition, except where color terms of ordinary significance are used. The color values were determined on Sep. 24, 2004 between 1:00 and 3:00 p.m. under natural light conditions.

The following descriptions and measurements describe plants produced from cuttings taken from stock plants and grown at West Chicago, Ill. in a double polycarbonate covered greenhouse under conditions comparable to those used in commercial practice. The plants were grown in 10 cm pots for 14 weeks while utilizing a soilless growth medium. Greenhouse temperatures were maintained at approximately 65°-78° F. (18°-25° C.) during the day and approximately 50°-60° F. (10°-15° C.) during the night. Greenhouse light levels were maintained at 6,000 to 9,000 footcandles during the day.

-   Botanical classification: Osteospermum ecklonis cultivar Balserpurp. -   Parentage: Open-pollination of ‘Springstar Aurora’, not patented. -   Propagation:     -   -   Type cutting.—Terminal stem.         -   Time to initiate roots.—Approximately 9 to 12 days.         -   Time to produce a rooted cutting.—Approximately 21-28 days.         -   Root description.—Fine, fibrous.         -   Rooting habit.—Freely branching. -   Plant description:     -   -   Crop time.—Approximately 10-13 weeks from rooted cutting.         -   Habit of growth.—Compact. Freely branching. One or two             pinches improves basal branching.         -   Form.—Upright, mounded.         -   Size.—Height — Approximately 42.9 cm from soil level to top             of plant plane. Width to outer inflorescences (area of             spread): Approximately 26.3 cm.         -   Branch.—Quantity per plant: Approximately 3 main branches.             Strength: Strong. Aspect: Erect. Length from soil level to             base of peduncle: Approximately 24.5 cm. Diameter at base:             Approximately 4.8 mm. Texture: Glabrous. Color: 144B.             Internode length at middle of branch: Approximately 5.5 mm.         -   Foliage.—Quantity per branch: Approximately 48. Type:             Simple. Fragrance: Faint. Arrangement: Alternate. Aspect: At             an acute angle to the stem. Shape: Elliptic, pinnatified.             Apex: Acute. Base: Sessile, attenuate. Margin: Widely             dentate. Venation pattern: Pinnate. Length: Approximately             6.8 cm. Width: Approximately 2.6 cm. Texture: Upper and             lower surface: Papillate. Color of upper surface of mature             foliage: Darker than 146A with venation of 145B. Color of             lower surface of mature foliage: 146B with venation of 145B. -   Flowering description:     -   -   Time to first flower.—Approximately 10-13 weeks from             planting of rooted cutting.         -   Flowering habit.—Freely flowering under outdoor growth             conditions with substantially continuous blooming from             spring through autumn and year round in greenhouse             environment.         -   Inflorescence arrangement.—Solitary, terminal.         -   Lastingness of inflorescence.—Approximately 4-6 days. -   Inflorescence description:     -   -   Appearance.—Type: Composite, persistent. Shape: Round.             Aspect: Slightly cupped, facing upward or outward. Disc and             ray florets develop acropetally on a capitulum. Fragrance:             None.         -   Quantity of inflorescences and buds per lateral             branch.—Approximately 4 inflorescences and 6 buds.         -   Size.—Diameter: Approximately 6.8 cm. Depth: Approximately             1.3 cm.         -   Bud.—Rate of opening: Generally takes from 3-6 days for buds             to progress from first color to fully open inflorescences.             Shape: Elliptic. Depth: Approximately 1.7 cm. Diameter:             Approximately 9.3 mm. Color: 144B.         -   Ray florets.—Quantity per inflorescence: Approximately 18,             arranged in a single whorl. Arrangement: Overlapping.             Aspect: Flat to slightly concave. Shape: Linear. Apex:             Emarginate with three tips. Base: Attenuate and fused to             form tube. Margin: Entire. Length: Approximately 4 cm. Width             at widest point: Approximately 9.6 mm. Texture: Glabrous and             ribbed. Color of upper surface of fully open ray floret:             N80A with ribs of 79B. Color of lower surface of fully open             floret: 197B.         -   Disc.—Diameter: Approximately 1.2 cm. Depth: Approximately             1.2 cm.         -   Receptacle.—Diameter: 3 mm. Depth: 2 mm. Color: 154D.         -   Disc florets.—Quantity per inflorescence: Approximately 95.             Shape: Tubular with five lobes each having an acute apex.             Margin: Entire: Length: Approximately 8 mm. Diameter at             apex: Approximately 3 mm. Diameter at base: Approximately             1 mm. Texture: Glabrous. Color of immature florets: N92B.             Color of mature florets: 96B.         -   Phyllaries.—Quantity per inflorescence: Approximately 18.             Arrangement: Imbricate, arranged in several rows. Shape:             Ovate. Apex: Acuminate. Base: Truncate. Margin: Entire.             Length: Approximately 1.2 cm. Width: Approximately 1.9 mm.             Texture of center of outer/lower surface: Rough. Texture of             center of inner/upper surface: Glabrous. Color of center of             outer/lower surface: Closest to 144B. Color of center of             inner/upper surface: Closest to 144C. Texture of margins:             Papery. Color of margins: 157B, transparent.         -   Peduncle.—Strength: Strong. Aspect: At an acute angle to the             stem. Length: Approximately 12.4 cm. Diameter: Approximately             1.6 mm. Texture: Rough. Color: 144A.         -   Reproductive organs.—Androecium: Present on disc florets             only. Stamen quantity: 5. Anther shape: Linear. Anther             length: 2 mm. Anther color: 93A. Amount of pollen: Abundant             Pollen color: 14A. Gynoecium: Present on ray and disc             florets. There is one pistil per floret. Pistil length:             7 mm. Stigma shape: Two parted. Stigma length: 1.3 mm.             Stigma color: N92B. Style length: 4 mm. Style color: Lighter             than 84D. Ovary size: 2 mm. Ovary color: 145C. -   Seed and fruit production: Neither seed nor fruit production has     been observed. -   Disease and pest resistance: Resistance to pathogens and pests     common to Osteospermum has not been observed. 

1. A new and distinct cultivar of Osteospermum plant named ‘Balserpurp’, substantially as herein shown and described. 